Study of novel functional inorganic materials by controlling dynamic oxygen relaxation
| Project/Area Number |
22655069
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Inorganic industrial materials
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| Research Institution | Nagoya Institute of Technology |
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Principal Investigator |
OZAWA Masakuni 名古屋工業大学, 工学研究科, 教授 (30252315)
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| Project Period (FY) |
2010 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥3,410,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥2,500,000 (Direct Cost: ¥2,500,000)
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| Keywords | Oxygen relaxation / Ionic conduction / Internal friction / Oxygen storage / Ceria / 緩和 / 内部摩擦 / イオン伝導 / セリア / ジルコニア / 酸素貯蔵能 / 色中心 / 結晶欠陥 / アパタイト |
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| Research Abstract |
The oxygen relaxation, oxygen storage and oxide ion conduction of the doped ceria and related metal oxides were investigated. The internal friction of some cubic ZrO_2 polycrystals was indicated as several type of oxygen relaxation peaks at the temperature range of 500℃at as low frequencies as 10Hz. The ceria addition reduced the amplitude of IF and oxide ion conduction in the system of Zr_<1-x> C_<ex> Y_<0. 2> O_<1. 9>. The influence of mixed state of cations in fluorite-type metal oxides to reducing the mobility of oxygen in cubic zirconia ceramics with defects were detected in this research.
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Report
(3 results)
Research Products
(48 results)
